Error codes Mercedes Atego MTCO unit (Mechanical Tachograph)
A tachograph is a vehicle-mounted device that automatically records the driver’s activity, as well as its speed and distance, selected from the selected mode. The driving mode is automatically activated when the vehicle is moving, and modern tachograph heads usually default to other working modes when stopped. The remaining modes and availability modes can be manually selected by the driver at rest.
Mercedes Fault Code | Fault Code Meaning |
TCO 0000 | The positioning of the tachograms is violated. |
TCO 0004 | Power failure |
TCO 1000 | CAN malfunction |
TCO 1100 | CAN malfunction |
TCO 1200 | Internal error |
TCO 1400 | Tachograph calibration is incorrect. |
TCO 1500 | Malfunction in the control panel |
TCO 1600 | Malfunction in the control panel |
TCO 1704 | CAN connection to INS (instrument cluster) malfunctioning |
TCO 3408 | Malfunction of the speed sensor |
TCO 3504 | Malfunction of the speed sensor |
TCO 4804 | Malfunction of the speed output |
TCO 8000 | Driving without a tachogram |
TCO 8100 | Driver 1 tachogram missing. |
TCO 8200 | Driver 2 tachogram missing. |
TCO 8300 | Synchronization could not be started. |
TCO 9000 | Positioning of tachograms is broken. |
TCO 9600 | The functioning of the drawer is broken. |
TCO 9700 | Faulty speed registration |
TCO 9800 | Faulty recording system |
TCO 9900 | Faulty recording system |